Class 3, Grade 2004, Korean College? Okay, Lin Lin.
In a blink of an eye, a hot summer vacation passed. Looking back silently, I can't help feeling helpless in time. When I was ready to clean up my mood and start again, I found that the original hurried holiday had a heavy enrichment. ?
Finally looking forward to the summer vacation, after a 48-hour long journey, I returned to my long-lost hometown, full of joy and happiness. In the past, I would play with my good friends every few days, but this summer vacation is different, because I was introduced to a "Nenjiang environmental investigation team" and I benefited a lot from this social practice investigation. ?
Since the 20th century, with the rapid development of science and technology and the continuous improvement of social productivity, human beings have created unprecedented material wealth and promoted the process of civilization development. At the same time, problems such as population explosion, excessive consumption of resources, environmental pollution and ecological destruction have become increasingly prominent and become major global issues. Therefore, protecting the environment on which we live has become an important problem that human beings urgently need to solve. The main purpose of our investigation team is to investigate and analyze the current water quality of Nenjiang River, understand the measures to solve the water quality problems by interviewing relevant people, and carry out effective publicity in the society to raise people's awareness of consciously protecting water resources. ?
Compared with the Yangtze River and the Yellow River, Nenjiang River is really an unknown river, but for me, it has an extraordinary position. Because I grew up on the bank of Nenjiang River, the water of Nenjiang River raised me. But Nenjiang is now facing the dilemma of water shortage, and I am really anxious. ?
On July 12, my team members and I arrived at Qiqihar Environmental Protection Bureau very early. We raised some questions about how to control water pollution. Director Li told us that the management of Nenjiang River water is not a problem that can be solved in a short time. The most fundamental thing is to follow the laws of nature. Since 1998, the environmental protection department has invested a lot of money in water treatment. But it is quite difficult to govern. Director Li emphasized that if you pollute the water, the water will pollute you; Therefore, we must strengthen people's consciousness of protecting water bodies and make full use of science and technology to harness Nenjiang River from all directions and sources. Otherwise, no amount of pollution control measures will become victims of putting the cart before the horse. ?
Then we came to the sewage treatment plant, where we saw rice, water spinach and other plants planted in the sewage treatment pool. The factory director said that this treatment method is very effective, and through this treatment method, sewage can be treated to the standard of second-class water. But this treatment is mainly to remove suspended solid pollutants from sewage. The biochemical oxygen demand of treated sewage can only be removed by about 30%, which is still not suitable for discharge. Therefore, the relevant technicians of the treatment plant are exploring how to effectively carry out secondary treatment of sewage to meet the discharge standards, which is also the goal of sewage treatment at this stage. ?
Then we came to Nenjiang. There is a famous "water park" swimming pool near Nenjiang River, which used to be a good place for summer vacation. However, the Nenjiang River water we saw was eclipsed by the invasion of cyanobacteria. Although the relevant departments have set up a strict anti-algae isolation belt, there are still quite tight cyanobacteria floating in the natural swimming pool. The water park that once provided people with leisure and entertainment has now become a "paradise" for cyanobacteria to inhabit. The pollution of Nenjiang River has sounded the alarm for us. In order to reproduce the clear water and beautiful color of Nenjiang River, relevant departments and experts have made a lot of efforts. ?
Through the visit, we know that the water pollution in Nenjiang River is mainly caused by the following aspects: The most important reason is that industrial and mining enterprises directly discharge untreated but substandard sewage into rivers and lakes. Second, the population is expanding day by day, and the domestic sewage is increasing sharply. A large amount of phosphorus-containing washing water and human excrement are directly discharged into rivers. In addition, hospitals, animal farms and slaughterhouses discharge untreated wastewater containing viruses, bacteria and parasites into rivers, which seriously pollutes Nenjiang water. Third, pesticides and fertilizers are widely used in agriculture. Part of it is dissolved in farmland. Flows into the river with the water. Fourth, some units and individuals have poor environmental awareness and low level of civilization, and dump domestic garbage into rivers and lakes at will. ?
In view of the above problems, we believe that effective measures should be taken to prevent and solve the water pollution problem: First, we should adhere to the simultaneous environmental control and economic restructuring of Nenjiang River. Based on solving structural pollution, we will resolutely implement the bankruptcy and closure policy for small chemicals, small electroplating and small printing and dyeing that waste resources, are backward in technology and have serious pollution. We should vigorously develop high-tech industries to reduce the damage to water resources. Second, we must adhere to the improvement of Nenjiang water environment and "one control and two standards" simultaneously, on the basis of consolidating and improving the results of pollution control. Third, we must adhere to the simultaneous improvement of Nenjiang water environment and urban construction and management, on the basis of improving the water environment. ?
I remember when I was a child, every weekend, my parents would take me to the Nenjiang River to play, but now Nenjiang River is not as beautiful and charming as before. Fortunately, with the care and support of governments at all levels, people have taken action, and the protection of Nenjiang water has attracted much attention. I hope that through everyone's efforts, Nenjiang water will become bluer, clearer and more beautiful in the near future.
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